Freezes during boot from HDD and DVD
my PowerBook G4 1.67 GHz with 2 GB RAM freezes everytime during the boot process. It always stops at the white screen with the Apple logo and the spinner. Unfortunately, the same happens when trying to boot from the Install Disc. The Hardware Test did not show any hardware errors, and when starting in verbose mode I receive an I/O error and I/O Timeout.
Does anyone have useful clues?